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In order to find the weight of the steel rod, we must know is mass and volume.

Volume of a cylinder:

Pi x r2 x length

pi x (0.00514)2 x 1

Volume = 8.3x10-5 m3

Steel has a density of 7850 kg/m3

Therefore the mass of the steel rod = 7850 x 8.3x10-5 = 0.652 kg

Weight of rod = 0.652 x 9.81

Weight of rod = 6.39 Newtons

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15y ago

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